Heater and water dispenser

Abstract

The utility model relates to the technical field of water dispensers, and provides a heater and a water dispenser, the heater comprises a heating pipe and a jet flow assembly, the heating pipe is provided with a liquid inlet port and a liquid outlet port; the jet flow assembly is inserted into the heating pipe and located in the heat exchange space between the liquid inlet end opening and the liquid outlet end opening. The jet assembly is provided with a jet cavity, a water inlet and a plurality of jet holes, the water inlet and the jet holes are communicated with the jet cavity, a flowing gap is formed between the outer wall face of the jet cavity and the inner wall face of the heating pipe, the water inlet faces the liquid inlet port, and jet areas of the jet holes do not exceed a heating area of the heating pipe. The jet flow assembly is arranged in the heating pipe, liquid flow needs to flow out through the jet flow assembly when flowing through the heating pipe, the liquid flow continuously scours the pipe wall of the heating pipe when flowing out through the jet flow assembly, and the heating area and the jet flow area are correspondingly arranged, so that liquid flowing out through the jet flow hole directly exchanges heat with the heating area, and efficient heating of the liquid flow is achieved; the heating efficiency of the liquid flow is improved, so that the effective temperature rise of the boiling water can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water dispensers, in particular to a heater and a water dispenser. Background Art

[0002] A water dispenser is a device used to provide hot or cold water or water at room temperature. The required hot water is obtained by heating the cold water through the instant heating system in the water dispenser.

[0003] Affected by the instability of the two-phase flow in the high-temperature section during the flow heating process, when the outlet water temperature is higher than 95 degrees, jetting is likely to occur at the water outlet, causing a sharp drop in system reliability. Therefore, in related technologies, due to the limited improvement in heat exchange efficiency and the influence of the jetting phenomenon, the water temperature is usually set within 95 degrees, which results in insufficient boiling water temperature in the water dispenser. Utility Model Content

[0004] The utility model provides a heater and a water dispenser, which are used to solve the defects of low heat exchange efficiency and difficulty in reaching boiling water temperature in the prior art.

[0005] The first aspect of the utility model provides a heater and a water dispenser, comprising: a heating tube and a jet assembly, wherein the heating tube has a liquid inlet port and a liquid outlet port; the jet assembly is inserted into the heating tube and is located in the heat exchange space between the liquid inlet port and the liquid outlet port; wherein the jet assembly has a jet cavity and a water inlet and a plurality of jet holes connected to the jet cavity, a flow gap is provided between the outer wall surface of the jet cavity and the inner wall surface of the heating tube, the water inlet faces the liquid inlet port, and the jet areas of the plurality of jet holes do not exceed the heating area of ​​the heating tube.

[0006] According to the heater provided by the utility model, the hole axis of the jet hole is perpendicular to the axial direction of the heating tube; or, the hole axis of the jet hole is inclined relative to the axial direction of the heating tube, so that the ejected fluid is directed toward the rear of the heating tube.

[0007] According to the heater provided by the utility model, the shapes of the plurality of jet holes are one or more of circular, triangular or square.

[0008] According to the heater provided by the utility model, at least some of the jet holes have different apertures.

[0009] According to the heater provided by the utility model, the aperture of the jet hole located in the middle of the jet cavity is larger than the aperture of the jet holes located at both ends of the jet cavity.

[0010] According to the heater provided by the utility model, the jet assembly also includes a center column, a water baffle and a jet tube, the water baffle is fixedly sleeved on the center column, one end of the jet tube faces the liquid inlet port to form the water inlet, the other end of the jet tube is connected to the water baffle, the jet hole is located on the wall of the jet tube, and the jet cavity is formed between the inner wall of the jet tube and the outer wall of the center column.

[0011] According to the heater provided by the utility model, the plurality of jet cavities are arranged at intervals along the axial direction of the central column, and the apertures of the plurality of jet holes on the same jet cavity are the same; the apertures of the jet holes on at least some of the jet cavities are different.

[0012] According to the heater provided by the utility model, along the flow direction of the fluid, the apertures of the jet holes on the plurality of jet cavities gradually increase or decrease.

[0013] According to the heater provided by the utility model, the plurality of jet holes are evenly distributed on the side wall of the jet cavity.

[0014] According to the heater provided by the utility model, the heating tube comprises a heating tube body and a heating element, the heating element is arranged on the heating tube body, and the heating element is configured to heat the heating tube body.

[0015] The heater provided by the utility model further comprises a water inlet structure and a water outlet structure, wherein the water inlet structure is connected to the liquid inlet port, and the water outlet structure is connected to the liquid outlet port.

[0016] According to a second aspect of the present invention, a water dispenser is provided, comprising a water dispenser body; the water dispenser body is provided with a heater provided by any one of the above embodiments.

[0017] The utility model provides a heater, which arranges a jet component in a heating tube. When a liquid flows through the heating tube, it needs to flow out through the jet component. When flowing out through the jet component, it continuously flushes the tube wall of the heating tube. The heating area and the jet area are arranged correspondingly, so that the liquid flowing out through the jet hole directly exchanges heat with the heating area, thereby realizing efficient heating of the liquid flow, improving the heating efficiency of the liquid flow, and further realizing effective heating of boiling water.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of a heater provided in an embodiment of the utility model.

[0021] Figure 2 It is a cross-sectional view of the heater provided in the embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the enhanced heat exchange component in the heater provided in an embodiment of the utility model.

[0023] Reference numerals:

[0024] 10. Heater; 110. Heating tube; 1101. Heating area; 120. Jet assembly; 121. Center column; 122. Jet tube; 1221. Jet cavity; 1222. Jet hole; 123. Water baffle; 130. Water inlet structure; 140. Water outlet structure; 150. Positioning structure; 160. Sealing structure; 170. Water inlet temperature sensor; 180. Water outlet temperature sensor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] like Figure 1 , Figure 2 As shown, the heater provided by the utility model includes a heating tube 110 and a jet assembly 120, the heating tube 110 has a liquid inlet port and a liquid outlet port; the jet assembly 120 is inserted in the heating tube 110 and is located in the heat exchange space between the liquid inlet port and the liquid outlet port; the jet assembly 120 has a jet cavity 1221 and a water inlet and a jet hole 1222 connected to the jet cavity 1221, a flow gap is provided between the outer wall surface of the jet cavity 1221 and the inner wall surface of the heating tube 110, the water inlet faces the liquid inlet port, and the jet area of ​​the jet hole 1222 does not exceed the heating area 1101 of the heating tube 110.

[0031] The liquid inlet port and the liquid outlet port of the heating tube 110 are arranged opposite to each other. For example, the heating tube 110 can be constructed as a hollow cylindrical structure, and openings are respectively arranged at both ends of the heating tube 110, and the openings at both ends are the liquid inlet port and the liquid outlet port, respectively. External fluids such as drinking water can enter the tube cavity of the heating tube 110 through the liquid inlet port. After the heating tube 110 heats the fluid, the heated fluid can leave the tube cavity of the heating tube 110 through the liquid outlet port to be supplied to the user end. Furthermore, the entirety of the heating tube 110 can be constructed as a straight tubular structure, and the jet assembly 120 is inserted into the straight tubular heating tube 110 as a whole.

[0032] Among them, the jet cavity 1221 can change the flow direction of at least part of the fluid in the radial direction of the heating tube 110 when the fluid flows from the liquid inlet port to the liquid outlet port of the heating tube 110, that is, flow toward the inner wall surface of the heating tube 110, so that the fluid can contact the inner wall surface of the heating tube 110, so that more fluid can obtain the heat of the heating tube 110, thereby improving the heat exchange efficiency.

[0033] In the specific setting, a plurality of jet cavities 1221 are provided in the heating tube, and the plurality of jet cavities 1221 are arranged at intervals along the liquid flow direction, which ensures that the fluid in each part in the length direction of the heating tube 110 can contact the inner wall of the heating tube 110 under the guidance of the jet cavity 1221, so as to improve the heat exchange effect.

[0034] It should be understood that the two end portions of the heating tube 110 are used to guide the flow of water, and the middle main body portion of the heating tube 110 is used to heat the flowing water. During the flow of water, the inner wall surface of the heating tube 110 will be continuously flushed. In order to improve the heat exchange efficiency and the preparation cost, in this embodiment, the heating area 1101 of the heating tube 110 is arranged relative to the jet area of ​​the jet assembly 120, which can realize the direct contact and heat exchange between the liquid ejected through the jet and the inner wall surface of the heating tube 110, thereby improving the heat exchange efficiency.

[0035] like Figure 1 As shown, water is input through the liquid inlet port, and the input water flows into the jet cavity 1221 from the water inlet, and is sprayed onto the inner wall surface of the heating tube 110 from the jet hole 1222 on the jet cavity 1221, and flows from the flow gap to the liquid outlet port. Heat exchange is continuously performed during the flow process, which improves the heat exchange efficiency, and the liquid flow temperature can be continuously increased through multiple jet cavities 1221 to reach the set temperature.

[0036] In some specific embodiments, the hole axis of the jet hole 1222 is perpendicular to the axial direction of the heating tube 110. The jet hole 1222 is used to guide the flow direction of the water flow at the hole axis so that the water flow can flow in a predetermined flow direction. In this embodiment, the hole axis of the jet hole 1222 is set to a vertical direction, so that the outflowing water flow is directly facing the inner wall surface of the heating tube 110, and the area opposite to the jet cavity 1221 is the heating area 1101, so after the liquid flow passes through the jet hole 1222, it can directly flush the inner wall surface of the heating hanging tube, thereby realizing efficient heat exchange of the liquid flow.

[0037] It is understandable that when the water flow is arranged directly against the inner wall of the heating tube 110, the water flow ejected by the jet hole 1222 can directly contact the inner wall of the heating tube 110, thereby increasing the contact area with the inner wall, improving the heat transfer efficiency, and making the heating process faster and more efficient. And because the jet hole 1222 directly guides the fluid to the surface of the heating tube 110, the heat loss between the fluid and the surrounding environment is reduced. This can save energy and make the heating process more economical and efficient.

[0038] In other embodiments, the hole axis of the jet hole 1222 is inclined relative to the axial direction of the heating tube 110, so that the injected fluid is directed toward the rear of the heating tube 110. There is a flow gap between the outer wall surface of the jet cavity 1221 and the inner wall surface of the heating tube 110, and the flow gap can realize the flow of liquid. In this embodiment, the jet hole 1222 is set to an inclined state, and the liquid flows through the jet hole 1222 to generate a jet toward the rear of the heating tube 110, which allows the inclined jet to be evenly distributed along the surface of the heating tube 110, making the entire heating more uniform, and also can increase the contact area with the inner wall surface of the heating tube 110, thereby achieving the purpose of improving the heat exchange efficiency.

[0039] It can be understood that the jet hole 1222 is inclined toward one end of the liquid inlet port, which allows the injected fluid to be directed toward the rear of the heating tube 110 and can generate a jet toward the rear of the heating tube 110 through the jet hole 1222, thereby increasing the time the jet is located in the water gap, increasing the heat exchange time between the liquid flow and the heating wall, and thus increasing the water outlet temperature of the heater 10.

[0040] In a specific implementation, the heating tube 110 includes a heating tube body and a heating element, the heating element is disposed on the heating tube body, and the heating element is configured to heat the heating tube body. The heating tube 110 is used to directly contact the water flow, and it can achieve heat exchange with the water and thus achieve heat exchange with the water flow. In this embodiment, the heating element directly heats the heating tube 110, thereby achieving a higher heat energy transfer efficiency, improving the heat exchange efficiency of the water flow in the heating tube 110, and increasing its outlet temperature.

[0041] Specifically, the heating tube body is a straight cylindrical component with openings at both ends (respectively, a liquid inlet port and a liquid outlet port), and a heat exchange space is formed inside the heating tube body. The jet assembly 120 is correspondingly arranged in the heat exchange space, and the heat exchange space corresponds to the heating element. The heating tube body can be made of metal materials, such as stainless steel, cast aluminum, etc., and the outside of the heating tube body is bonded with a thick film resistor heater 10, a nanoelectronic film heater 10, or a stainless steel heater 10. When it is necessary to heat the fluid in the heating tube body, these heaters 10 can be powered on, and then these heaters 10 can generate high temperature and heat up the heating tube body. When the fluid flows in the heating tube body, the fluid can be heated.

[0042] In one embodiment, when heat exchange heating is adopted, the heating tube body can be made of metal material, such as stainless steel, and a gas heater 10 is arranged outside the heating tube body. When it is necessary to heat the fluid in the heating tube body, gas can be supplied to the gas heater 10, and the gas heater 10 can ignite the gas after obtaining the gas to make it burn, thereby heating the heating tube body to increase its temperature. When the fluid flows in the heating tube body, the fluid can also be heated.

[0043] In a specific embodiment, Figure 1 As shown, both ends of the heating tube body have non-heating areas, and no heating element is correspondingly arranged in the non-heating areas. The non-heating areas are used to connect other functional components. As in this embodiment, a water inlet structure 130 is connected at the position of the liquid inlet port, and a water outlet structure 140 is connected at the position of the liquid outlet port. The water inlet structure 130 is used for connecting to the water inlet end, and the water outlet structure 140 is used for connecting to the water outlet end. Specifically, the water inlet structure 130 and the water outlet structure 140 are both sealed and connected to the heating tube body.

[0044] In the specific configuration, the water inlet structure 130 is provided at the water inlet end of the heating tube 110 through a threaded connection, and the water outlet structure 140 is provided at the water outlet end of the heating tube 110 through a threaded connection. The threaded connection is convenient for disassembly and sealing, and is convenient for taking out the enhanced heat exchange assembly 120 provided in the heating tube 110 for cleaning, maintenance or replacement. A sealing structure 160 (such as a sealing ring or a threaded sealing structure) is provided at the connection position between the water inlet structure 130, the water outlet structure 140 and the heating tube 110 to enhance the sealing performance of the heater 10.

[0045] It can be understood that the water inlet structure 130 and the water outlet structure 140 are both connected to specific water flow structures, and the threaded sealing connection can ensure the sealing of each connecting part, improve the overall stability of the heater 10 during use, and increase its service life.

[0046] In a specific embodiment, the water inlet structure 130 is provided with an inlet water temperature sensor 170 for monitoring the inlet water temperature, and the water outlet structure 140 is provided with an outlet water temperature sensor 180 for monitoring the outlet water temperature. By providing the inlet water temperature sensor 170 and the outlet water temperature sensor 180, the inlet and outlet water temperatures of the heating pipe 110 can be monitored in real time, and the heating effect of the heating pipe 110 can also be reflected by the inlet and outlet water temperatures of the heating pipe 110.

[0047] In some embodiments, the jet assembly 120 further includes a central column 121, a water baffle 123 and a jet tube 122, the water baffle 123 is fixedly sleeved on the central column 121, one end of the jet tube 122 faces the liquid inlet port to form a water inlet, the other end of the jet tube 122 is connected to the water baffle 123, the jet hole 1222 is located on the wall of the jet tube 122, and a jet cavity 1221 is formed between the inner wall of the jet tube 122 and the outer wall of the central column 121. Both ends of the central column 121 are fixed in the heating tube 110 through the positioning structure 150, and are coaxially arranged with the heating tube 110. The central column 121 is a cylindrical component with a certain length, the jet tube 122 is installed on the central column 121 through the water baffle 123, and the central column 121 is penetrated through the jet cavity 1221 of the jet tube 122. The jet tube 122 is a cylindrical component. After water enters the jet chamber 1221 through the water inlet, the water flows out from the jet hole 1222 located on the side wall under the action of the water baffle 123 and forms a jet.

[0048] In a specific embodiment, Figure 3 As shown, the number of the ejector tubes 122 is at least one, and may be single or multiple, and is selected according to the specifications of the heater 10. When the enhanced heat exchange component 120 has a single ejector tube 122, the incoming water can form a single jet through the ejection hole 1222 after entering the ejector tube 122. When there are multiple ejector tubes 122, the multiple ejector tubes 122 are arranged on the central column 121 at intervals along the water flow direction, and the incoming water flows through the ejection holes 1222 of the multiple ejector tubes 122 in sequence to form multiple jets. Through multiple jet heat exchanges, the fluid temperature continues to rise until it reaches the design temperature, and then flows out from the outlet structure.

[0049] In some embodiments, the multiple jet holes 1222 on the side wall of the jet chamber 1221 can be jet holes 1222 of the same aperture, which can produce jets of uniform coarseness and fineness, or at least some of the jet holes 1222 can have different apertures and can produce jets of corresponding coarseness and fineness at different axial or circumferential positions according to actual needs, so that the pressure drop and heat exchange efficiency at different axial positions of the jet chamber 1221 are maintained within an optimal range.

[0050] In the specific setting, the aperture of the jet hole 1222 located in the middle of the jet chamber 1221 is larger than the aperture of the jet holes 1222 located at the two ends of the jet chamber 1221. After the liquid flow enters the jet chamber 1221, it can form a coarser jet in the middle of the jet chamber 1221 through the jet hole 1222, and form a finer jet at the two ends of the jet chamber 1221, so that the middle of the jet chamber 1221 maintains a smaller pressure drop, and the two ends with strong jets maintain a higher heat exchange efficiency, thereby balancing the pressure drop of the jet chamber 1221 and the heat exchange efficiency between the heated wall.

[0051] It can be understood that the larger aperture in the middle can have a larger effective liquid storage capacity in the middle of the heating tube 110. This part of the liquid can flow quickly through the larger aperture, thereby improving the overall fluidity of the heater 10 and reducing the overall pressure drop. The two ends can accurately control the input and output water volumes, thereby achieving efficient heat exchange with water.

[0052] In some specific embodiments, along the flow direction of the fluid, the apertures of the jet holes 1222 on the multiple jet cavities 1221 gradually increase or decrease. When the apertures of the jet holes 1222 on the multiple jet cavities 1221 gradually increase, the jet formed by the upstream jet holes 1222 can have a higher heat exchange efficiency with the heated wall surface, and the jet formed by the downstream jet holes 1222 can have a smaller pressure drop, thereby balancing the pressure drop of the jet cavity 1221 and the heat exchange efficiency with the heated wall surface.

[0053] Similarly, when the apertures of the jet holes 1222 on the multiple jet cavities 1221 gradually decrease, the jet formed by the upstream jet holes 1222 can have a smaller pressure drop, and the jet formed by the downstream jet holes 1222 can have a higher heat exchange efficiency with the heating wall surface, thereby balancing the pressure drop of the jet cavity 1221 and the heat exchange efficiency with the heating wall surface. That is, by limiting the aperture size of the jet holes 1222, a balance between pressure drop and heat exchange efficiency can be achieved, so that the heater 10 as a whole has both good heat exchange efficiency and appropriate pressure drop.

[0054] In some embodiments, a plurality of jet holes 1222 are evenly arranged on the side wall of the jet tube 122. By evenly distributing a plurality of jet holes 1222 on the side wall of the jet tube 122, it is possible to ensure that the jet formed by the jet holes 1222 is evenly distributed in the heating tube 110, and heat exchange occurs with different positions of the heating wall surface arranged along the circumferential direction, thereby improving the heat exchange efficiency. In addition, the jet formed by the jet holes 1222 is evenly distributed in the heating tube 110, which can also balance the force of the liquid flow in all directions impacting the heating wall surface, further improving the stability of the heater 10 when in use.

[0055] In some specific embodiments, the central column 121 is arranged concentrically with the heating tube 110, and a plurality of jet cavities 1221 are arranged at intervals along the axial direction of the central column 121. The apertures of the plurality of jet holes 1222 on the same jet cavity 1221 are the same; the apertures of the jet holes 1222 on at least some of the jet cavities 1221 are different. The apertures of the jet holes 1222 on the same jet cavity 1221 are the same, and they are processed using the aperture of the same jet cavity 1221, thereby reducing the processing difficulty and cost of the jet holes 1222. The different control of the apertures of the jet holes 1222 on different jet cavities 1221 can improve the heat exchange efficiency of the heater 10 in an effective space. For details, please refer to the above-mentioned definition of different apertures on different jet cavities 1221.

[0056] In some embodiments, the shapes of the plurality of jet holes 1222 are one or more of circular, triangular or square. By setting the jet holes 1222 as circular jet holes 1222, triangular jet holes 1222 or square jet holes 1222, a circular, triangular or square jet corresponding to the cross-sectional shape can be formed to meet different pressure drop and heat exchange efficiency requirements. For example, when the jet holes 1222 are circular jet holes 1222, it is suitable for general situations; when the jet holes 1222 are square jet holes 1222, it is suitable for situations where the pressure drop requirement is greater than the heat exchange capacity requirement; when the jet holes 1222 are triangular jet holes 1222, it is suitable for situations where the heat exchange capacity requirement is greater than the pressure drop requirement.

[0057] It should be understood that when the hole shapes are different, the jet area formed by each hole shape is directly opposite to the heating area 1101 on the heating tube 110, so that the liquid flow ejected through the jet cavity 1221 can directly face the inner wall surface of the heating tube 110, thereby realizing efficient heat exchange of the liquid flow.

[0058] The utility model also provides a water dispenser, comprising a water dispenser body; the water dispenser body is provided with a heater 10 provided in any of the above embodiments. As can be seen from the above, after the liquid flows through the heater 10, it can be efficiently heated after flowing through the jet assembly 120. Therefore, in this embodiment, the water flow can be quickly heated after passing through the heater 10.

[0059] It can be understood that through the setting of the above-mentioned heater 10, the incoming water flow can efficiently exchange heat and gradually reach the preset temperature through the multi-stage jet cavity 1221, and the liquid flow pressure drop can be within an optimal range while ensuring the heat exchange efficiency, thereby improving the stability of the water dispenser.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A heater, characterized in that: include: A heating tube having a liquid inlet port and a liquid outlet port; A jet assembly is inserted into the heating tube and is located in the heat exchange space between the liquid inlet port and the liquid outlet port; Among them, the jet component has a jet cavity and a water inlet and a jet hole connected to the jet cavity, a flow gap is provided between the outer wall surface of the jet cavity and the inner wall surface of the heating tube, the water inlet faces the liquid inlet port, and the jet area of ​​the jet hole does not exceed the heating area of ​​the heating tube.

2. The heater according to claim 1, characterized in that The hole axis of the jet hole is perpendicular to the axial direction of the heating tube; Alternatively, the hole axis of the jet hole is inclined relative to the axial direction of the heating tube, so that the jetted fluid is directed toward the rear of the heating tube.

3. The heater according to claim 1, characterized in that The shapes of the plurality of jet holes are one or more of circular, triangular or square.

4. The heater according to claim 1, characterized in that At least some of the jet holes have different apertures.

5. The heater according to claim 4, characterized in that The aperture of the jet hole located in the middle of the jet cavity is larger than the apertures of the jet holes located at both ends of the jet cavity.

6. The heater according to any one of claims 1 to 5, characterized in that: The jet assembly also includes a center column, a water baffle and a jet tube. The water baffle is fixedly sleeved on the center column. One end of the jet tube faces the liquid inlet port to form the water inlet. The other end of the jet tube is connected to the water baffle. The jet hole is located on the wall of the jet tube. The jet cavity is formed between the inner wall of the jet tube and the outer wall of the center column.

7. The heater according to claim 6, characterized in that The plurality of jet cavities are arranged at intervals along the axial direction of the central column, and the apertures of the plurality of jet holes on the same jet cavity are the same; and the apertures of the jet holes on at least some of the jet cavities are different.

8. The heater according to claim 7, characterized in that Along the flow direction of the fluid, the apertures of the jet holes on the plurality of jet chambers gradually increase or decrease.

9. The heater according to claim 1, characterized in that The plurality of jet holes are evenly distributed on the side wall of the jet cavity.

10. The heater according to claim 1, characterized in that The heating tube comprises a heating tube body and a heating element, wherein the heating element is arranged on the heating tube body and configured to heat the heating tube body.

11. The heater according to claim 1, characterized in that It also includes a water inlet structure and a water outlet structure, wherein the water inlet structure is connected to the liquid inlet port, and the water outlet structure is connected to the liquid outlet port.

12. A water dispenser, characterized in that: include: Water dispenser body; The water dispenser body is provided with a heater as described in any one of claims 1 to 11.

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